Yes, it's called Form 990 and it is a requirement to publish it on a yearly basis to retain non-profit status. You can search for any US-registered NGO here for example: https://projects.propublica.org/nonprofits/
To put it in HN terms, this is what people here like to use to shit on Mozilla for how much they pay their executives while having zero insight into how much Firefox's for-profit competitors pay their executives.
To put it in HN terms, this is what people here like to use to shit on Mozilla for how much they pay their executives while having zero insight into how much Firefox's for-profit competitors pay their executives.